What do you want to do?

Change the color of a border

Under Video Tools, on the Format tab, in the Video Styles group, click the arrow next to Video Border, and then click the color that you want.

If you don't see the Video Tools or Format tabs, make sure that you've selected the video.

Tip To change to a color that is not in the theme colors, click More Outline Colors, and then either click the color that you want on the Standard tab, or mix your own color on the Custom tab. Custom colors and colors on the Standard tab do not update if you later change the document theme.